BS 5839‑1:2017, Clause 23 states:
"23.2.2 The following recommendations apply to the facilities provided for visual indication
of fire signals.
...e) On or adjacent to indicating equipment, there should be a diagrammatic representation of the building, showing at least the building entrances, the main circulation areas and the division into zones. The diagrammatic representation may comprise any of the following:
1) an illuminated mimic diagram;
2) a VDU with an appropriate back up; or
3) a printed, correctly orientated, zone plan
(my red to highlight points I will discuss )
A British Standard is a recommendation of best practice and is not a legislative requirement. If you fully comply with a BS, you will almost certainly comply with the law
However, you can apply a variation in the relevant British Standard if its reasonable to do so and its supported by a sound business case.
For example, you may not want to permit the operation of a manual call point at a Police Station to evacuate the building. So you may wire it up to sound a local alalrm at reception or a control room etc
Similarly, break a manual call point at a London Underground Station and it will be acted upon, but it will remain silent during an investigation
When an Inspecting Officer, I signed off a fashion outlet who wanted to paint their extinguishers the same dark green colour as the walls (with agreed caveats) which was a variation from the BS advice
In the case of Zone Plans, it is accepted practice that a framed version be available on the wall near to the control panel. But the actual BS states a 'printed plan' is acceptable.
For most premises of low to medium risk. I cannot why there would be an issue if Zone Plans are available in a folder nearby and accessible in a manner where a stanger who is in the building for the first time will easily locate it in seconds.
One could argue that the plan is doing exactly what it is required to do in folder format as it would be hung on the wall. I daresay there's a chance that a jobsoworth Fire Safety Inspector might make a fuss, but if they do - ask them to show you which bit of legislation makes displayed plans a requirement
In my opinion, they can not argue that the alarm is not suitable and sufficient as the plan is in an immediately availale folder rather than on the wall!!!!
Talking of Zone Plans, I have seen a huge fuss made in a new building we opened re the lack of Zone Plans. The premises had a fully addressible system which statesd (for example) "SD Room 123, 4th floor, South Wing'.
As a result, the whole concept of a basic Zone Plan was a waste of time. We argued with Building Control that our detailed plan with room numbers etc was far more effective in locating the head. The fire service agreed with us and the BC jobsworth scurried off back under the stone he had come from